The blackout will have one good effect, it will alert the mass of internet users in the US who are unaware of the controversy that there is a problem. If enough people simply say, “hey, what’s up with this? Are SOPA and PIPA really good ideas?” the legislation will be stopped cold, at least in its current incarnation.
And I have no ethical issue with workarounds. The point of the blackout is to raise awareness. If you are aware, it has served its purpose and there is no reason to deny yourself access. But personally I’m not going to bother with workarounds. There’s nothing on Wikipedia that I can’t get elsewhere or wait 24 hours for.